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Insultingly Stupid Movie Physics

Page 26

by Tom Rogers


  motion of object passed through, 201

  speed of, 174

  tracer, 282

  Bullet trajectory and geometry of aiming sniper rifles, 25–27

  Bus jump, 133–139

  center of mass, 134

  downward acceleration due to gravity, 136

  ramp and ramp angel, 134, 136

  takeoff velocity, 136

  torque to rotate, 135

  Butterfly effect, 269

  C

  Car, airborne

  air cannon, 255

  kicker plates, 254–255

  Matrix II, 255

  net force, 254

  Carnot efficiency

  heat loss, 39

  friction, 39

  Cars

  as weapons, 175–176, 280

  kinetic energy, 176

  Cellular [PGP] (2004), 250–251

  Center of mass, 233, 245–246

  in martial arts, 246

  and pivot point, 245

  and spear throwing, 249–251

  Center of rotation, 233

  Centripetal acceleration

  and aircraft, 159–160

  fatal turns by spacecraft, 158–160

  Centripetal force, 233, 236

  Change of motion, 67

  Changing velocity and acceleration, 147

  Chaos theory, in Jurassic Park, 270

  Cigarettes

  as lighters, 273–290

  Circumference, 233

  Collateral Damage [PGP] (2002), 114

  Collision with concrete dome

  falling debris, 77

  ricochet, 77

  Combustion and free radicals, 274–275

  Comic book adaptation, 5

  Compression in Honey I Blew up the Kids,62

  Conservation of momentum, 253

  with handgun, 252

  Constant density approach in Honey I Blew up the Kids, 56–63

  Counting gunshots in Dirty Harry,18

  Critical velocities related to gravity, 217

  Cyclist jump, 129

  downward-sloping parabolic path, 125

  D

  D-cell batteries, 43

  Deep Impact [PGP-13] (1998), 213, 220–222

  Density, 52–63, 156, 214

  falling, 156

  Honey I Blew up the Kids, 56–63

  Honey I Shrunk the Kids, 52–57

  Dirty Harry [PGP] (1971)

  counting gunshots, 18

  and movie mathematics, 18

  Distance, 108, 196

  explosions, 108

  of asteroid, 223

  Distortion of judgment about shooting, 202–203 Distribution of force, 94

  Downward acceleration by gravity and air resistance, 125

  Driving geometry, 28–30

  E

  Elastic stability, 61, 265

  and building collapse, 266–267

  experiment, 62

  in Honey I Shrunk the Kids, 52–57

  Empire’s Death Star, 103–104

  Energy

  concentrated versus dispersed, 42

  and conservation, 290

  Equal and opposite “touching force,” 86

  Eraser [RP] (1996), 185–190

  Explosion propagation effects, 101

  and blast front, 101

  and electromagnetic pulse, 102

  Explosions

  in Collateral Damage, 114

  and resulting fireball, 108–113

  and infrared radiation (IR), 111

  in shafts and tunnels, 113–114

  outrunning, 108

  shock wave from, 102, 111

  F

  Falling, 153–156

  bullets, 173

  density, 156

  gravity constant (g) and, 172

  humans, 171–172

  spaceship, 165

  in The Mexican, 175

  in XXX State of the Union, 155

  Fantasy cartoons, 5

  Fighter aircraft (machine guns act as thrusters), 90

  Fire, conditions needed for, 274–275

  Fireball from explosions, 108–113

  First law of thermodynamics, 34

  and A.I.: Artificial Intelligence,44

  and bullet penetration, 79

  conservation of energy, 34

  converting mass into energy and back, 36

  E = MC2, 35

  in Honey I Shrunk the Kids, 52–57

  in The Hulk [NR] (2003), 36

  in Spider-Man,37

  Force, 215

  normal, 231–237

  Fragmentation grenade, 112

  and shrapnel, 113

  Free-body diagram and Newton’s third law, 84–86

  Free radicals, 274–275, 284

  combustion of , 275

  oxygen, contact with fuel, 284

  Friction

  and momentum, 181

  in Lethal Weapon, 181

  Friction force, in Speed II: Cruise Control, 150

  Fuel, 299

  in Star Wars Episode III, 298

  Fuel, mass of, 46, 192

  in A.I.: Artificial Intelligence,46

  required for liftoff, 192

  for robots, 46

  Fusion process, powered by, 288

  Enterprise’s impulse engines are thrusters, 288

  G

  Galileo, rate of fall independent of mass, 138

  Gasoline and flammable temperature range, 277

  Geometry of driving, 28–30

  Getting gunfights right in Blackhawk Down,28

  Glass

  attractive force of, 179

  safety, laminated, 87–89

  Gravitational attraction in Armageddon, 169

  Gravity, 139, 224

  artificial, 160, 231–242

  direction of, 225

  sensation of, 299–300

  in Star Wars Episode III, 298

  in The Core, 225

  Gravity acceleration and air resistance, 125

  Grenade, white phosphorous, 112

  gs, 151–153, 224, 230

  and falling, 172

  and fatal turns by spacecraft, 158–160

  and feeling of zero gravity, 302

  inside Earth, 215

  on planet, moon, or asteroid, 214–215

  in Speed II: Cruise Control, 150, 153

  strength of, 215

  as unit of acceleration, 152

  Gun recoil

  and acting, 89–90

  of .50-caliber machine gun, 90

  in Pearl Harbor,90

  Gunshots, counting, in Dirty Harry,18

  H

  High acceleration requirement, 151

  High-energy particle beams

  behavior in space, 73

  deflection of, 75–76

  and magnetic field shield, 74

  straight trajectory of, 73

  High pressure and spaceship falling, 165

  High temperature, 166

  and spaceship falling, 165

  High velocity impact in space, 72

  Honey I Blew up the Kids [NR] (1992), 56–63

  compared to large and small humans, 57–58

  constant density approach, 59

  density, 58

  Honey I Shrunk the Kids [NR] (1989), 52–57

  remove molecules, 53–54

  Hulk jumping 140

  I

  Incendiary bullets, in Raiders of the Lost Ark, 282

  Independence Day [RP] (1996), 164–168

  blast wave, 166

  high pressure, 166

  high temperature, 166

  wind velocity, 165

  Indoor gun battles, 76

  The Matrix Revolution,76

  Inertia, 196–199

  rotational, 196–199

  Inertial dampers, 160–161

  Star Trek, 160

  Inter- and intramolecular space, 56

  Honey I Blew up the Kids, 56–63

  J

  Japanese zeros’ cannons recoil
complicates aim, 90

  JFK [RP] (1991) 27, 195, 203

  Oswald’s gun and skill, 27

  Joule-Thompson effect, 75

  Jumps and Hulk, 140

  Jump vehicle. See Vehicle jump, most famous

  Jurassic Park [PGP-13] (1993), 270

  K

  Kennedy’s head motion, analysis of, 196–200

  King Kong [PGP-13] (2005), 60–61

  Kinetic energy, 169, 188, 263, 280, 290

  bullet, 280

  falling bullets, 173

  falling humans, 171

  heat, 280

  in Armageddon, 169

  in space debris, 289–290

  in The Core, 171

  in tsunami, 263

  loss of, 280

  Knife throwing, 247–249

  L

  Laminated safety glass, 87–89

  Lasers, behavior in space, 73

  Law of conservation of momentum, 180

  Law of inertia: mass resists a change in motion, 67

  Lethal Weapon [PGP-13] (1987), 179–184

  Lift, 301, in Star Wars Episode III, 301

  Lorentz factor, 187

  M

  Machine guns acting as thrusters for fighter jets, 90

  Magnetic field

  rail-gun, 188

  as shield, 74

  Magnetic field, Earth’s and earthquake weapon in The Core [XP] (2003), 9–10

  Magnetic field shield, 74, 75

  high velocity charged-particle beam, 74

  Make-believe movie history in Pearl Harbor [PGP-13] (2001), 11–13

  Martial arts and Newton’s third law, 92

  Mass, 54, 192, 215, 233

  acceleration, 192

  in Honey I Shrunk the Kids, 52–57

  at rest, 187

  Mathematics, super-tsunami, and Bernoulli’s equation, 261–262

  Mission to Mars [RP] (2000), and spaceship rotation, 238

  Models of physics, 34

  Momentum, 180, 290

  backward, 187

  of bullets, 180–181

  conservation of, 196, 200–202

  forward, 187

  and friction, 181

  human, 180–181

  in Lethal Weapon, 180–185

  need for conservation of, 290

  rotational, 196–199

  shooting victim’s, 183

  shooter’s, 183

  speed of light, 187

  Motion of target, 26

  Movie mathematics, 18–19

  Movie physics done right

  in 2001: A Space Odyssey, 237

  in Band of Brothers, 112

  in Cellular, 250

  in Pushing Hands, 93

  in Saving Private Ryan, 112

  in The Road to Perdition, 79

  Physics models, 34

  Movies as good physics teaching tools, 2

  Muscle strength to weight ratio in King Kong, 60–61

  N

  NASA’s first working space walk, 96–98

  and Newton’s third law, 96

  Net force, 254

  car, airborne, 254

  pushing and resistance forces, 68

  Net torque, 245–246

  and rotational acceleration, 245

  Newton’s first law, 68, 151

  in Speed II: Cruise Control, 151

  Newton’s second law, (second law of thermodynamics), 151

  Newton’s third law

  in 2001: A Space Odyssey,94

  and boxers, 83

  and glass, 86

  explained, 84

  gun recoil, 89

  shooting victim, 183

  in Star Wars Episode II,91

  Yoda’s force on the rocks equal to their weight, 91

  Newtonian martial arts, 92

  Normal force, 231–237, 232–237, 236

  artificially produced, 236

  centripetal force, 236

  in space, 236–247

  sensation of weight, 235

  Nuclear bomb, 103, 163, 170

  in Independence Day [RP] (1996), 164

  in The Core, 170–171

  used to save earth, 103, 163–165

  O

  Opposing forces (equal and opposite), 84

  Orbital velocity, 301

  in Star Wars Episode III,30

  Outrunning fiery explosions, 108–113

  P

  Painters breaking laws of physics, 45

  Parody and bad physics, 5

  Pearl Harbor [PGP-13] (2001), 90

  bombs-fall-straight-down myth, 117

  and make-believe movie history, 11–13

  and physics of bomber flight, 12

  and physics of dog-fighting, 12

  Perpetual motion machine, and frictionless environment, 40

  Physics clichés becoming obsolete, 7

  Physics of bomber flight in Pearl Harbor,12

  Physics of bombing, 117–124

  and bomb’s velocity, 119

  and downward-sloping parabolic path, 119

  and gravity, 119

  Physics of dog-fighting in Pearl Harbor,12

  Potential energy, 171, 267

  and building collapse, 267

  and falling humans, 171

  President Kennedy assassination, 203–210

  Pressures and temperatures, 264, 265

  in building collapse, 265

  from water depth, 263–264

  in Honey I Shrunk the Kids, 52–57

  in The Core [XP] (2003), 9–10

  in The Day After Tomorrow, 260

  in Star Wars Episode III, 298

  and type of external load, 264

  of water, 260

  Projectile trajectory, 73–79

  deterioration due to gravity, 72–78

  downward curving, 73

  WWII versus space, 73

  Properties of similar triangles in handgun shooting, 20

  Pulp Fiction [PGP]

  physics precision and artistic ambiguity, 21

  movie physics done right, 21

  Pushing Hands [GP] (1992), 93

  R

  Radioactive contamination, 52

  Radius, car turning in The Italian Job, 28–30

 

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